Finding the Fourth Proportional to 76,243.02, 104,997.87 and 68,624.46
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Solution
The fourth proportional to 76,243.02, 104,997.87 and 68,624.46 is: 94,505.99
Step by Step Solution
- Step 1: Write the proportion equation
76,243.02 : 104,997.87 = 68,624.46 : x - Step 2: Convert to fraction form
76,243.02/104,997.87 = 68,624.46/x - Step 3: Cross multiply
76,243.02x = 104,997.87 × 68,624.46 - Step 4: Simplify right side
76,243.02x = 7,205,422,129.90 - Step 5: Solve for x
x = 7,205,422,129.90/76,243.02 - Step 6: Final answer
x = 94,505.99
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.